#main
{
	width:800px;
	margin-left:auto;
	margin-right:auto;
}

#maintitle
{
	margin-top:50px;
	margin-bottom:20px;
	padding:5px;
	background-color:gray;
	color:white;
	font-size:20px;
	
}

.result
{
	border:2px gray solid;
}

.bookimage
{
	width:200px;
	height:300px;
	float:left;
	margin:10px;
}

.bookimage img
{
	width:200px;
	height:300px;
	border:1px black dashed;
}

.introduce
{
	padding:10px;
	width:500px;
	margin-left:30px;
	margin-top:20px;
	float:left;
	border:1px gray solid;
}